Socket wrench head



S K BROWN SOCKET WRENCH HEAD.

FILED ocT.14, 1921.

Jan. 16, 1923.

wm?. 6 l i v M,

'ATTORNEYS Patented J an. 16, 1923.v

UNITED STATES PATENT OFFICE.

SPENCER K. BROWN, OF SYRCUSE, NEW YORK.

SOCKET WRENCH HEAD.

Original application filed March 3, 1921, Serial No. 449,305. Divided and this application filed October 14, 1921. SeraI No. 507,645.

Be it known that I, SPENCER K. BROWN, a citizen ot the United States, and a resident of Syracuse, in the county of Onondaga and State orl New York, have invented a certain new and useful docket lNrench Head, ot which the following is a specification.

'.ilhis invention has ttor its object a wrench head having particularly simple and etilcient means for guiding the nut or angular head oi a bolt or screw into the angular socket oi the wrench head especially when the wrench head is power driven.

r"he inventioii consists in the novel teatures and in the combinations and constructions hereinafter set torth and claimed.

in describing this invention, reference is had to the acconipanying drawings in which like characters designate corresponding parts .in all the views.

Figure 1 is an elevation, partly in section, ot a wrench head embodying my invention.

Figure 2 Fig. l.

VFigure 3 is a detail View oi the contiguous part ot' a machine 'tor which my wrench head is 'iarticularly adapted.

rllhe construction oit the machine 'forms no part ot this invention, but forms the subject matter oi my pending application, Sr. No. 449,305, filed March 192i, of which application this is a division. 1

il. designates the wrench head which has a polygonal socket 2 for receiving the nntor the angular head oi a bolt or screw.

The means for guiding the bolt head or nut into the polygonal socket as here shown comprises a circular recess at the entrance oi' the polygonal socket, the recess being of as great diameter as the diagonal ot' the socket and as here shown, the recess is a substainiially cylindrical countersunk recess I at the entrance end of the socket, the socket opening through the bottoni ot the recess and the corners L ot' the socket being substantially coincident or iinsh with'the wall of the recess as seen in Fig. 2. The wrench head .is designed particularly to be used in connection with a rotating and axially movable driving member as a spindle, which rotates apidly and during the rapid rotation ot the wrench head when brought down on the nut or the head ot a bolt, the recess is a Aface view ot parts seen in 3 initially receives the bolt head or nut and rotates thereon until during the axial feeding movement ot the spindle, the bolt head or nut coincides with the socket 2 and slips thereinto.

6 designates the spindle which is suitably supported by a frame i' and which is rotated by any suitable means as a rotating driver 8 having a gear 9 thereon which meshes with the driving gear, not shown, the driver 8 being connected to the spindle through a Jfriction clutch l0. rllhe spindle 6 is fed axially usually by hand.

rVlie spindle as here shown has a head l2 at its lower end which is keyed thereto at 13 and which is held from displacement by a screw 14.

This head 12 rotatably fits in a tool holder l5 suitably journaled in the frame 7 and in which is also supported a wrench head l, the wrench head being shown as rotatably mounted in a neck 16 at the lower end of the tool holder and having an enlargement or collar .i7 which rotatably fits within the tool holder and also shoulders against the bottom wall of the tool holder at 15.

The head l2 and the inner end of the wrench head are provided withmeans arranged to interlock during` downward movement oi the spindle whereby the wrench head rotates with the spindle, this means being here shown as interlocking teeth 19 and 20 on the head l2 and the wrench head l respectively.

These teeth and the coaction oi the spindle with the wrench head form no part ot this invention, but constitute the subject matter of my pending application above referred to, and the construction and operation of the spindle are pertinent to the present invention only in so Jfar as the operation oi the recess 3 at the entrance of the hexagonal socket ot the wrench is concerned when such recess is guiding` the nut or bolt head into the socket during rapid rotation of the wrench head h v the spindle t3,

lVhat I claim is:

l. A wrench head having a. polygonal socket, and a circular recess at the mouth ot the socket concentric with the axis of the socket for guiding the nut or screw head into the socket, such recess being ot great diameter as a diagonal of the socket, suhstantially and tor the purpose described.

2. wrench head having a polygonal socket, and an annular countersunk recess at the entrance of the socket, the socket opening through the bottom of the recess, substantially as and for the purpose specified.

3. A Wrench head having a polygonal socket, and an annular countersunk recess at the entrance of the socket, the socket opening throughthe bottom of the recess, the corners of the polygonal socket being substantially flush With the inner annular Wall of the recess, substantially as and for the purpose set forth.

4. In a machine of the class described,

the combination of a rotatable and axially movable driving member and means for actuating said member, oi -a Wrench head movable with said member, the Wrench head having a polygonal socket, and an annular countersunk recess at the entrance of the socket, the socket opening through the bottom of the recess, substantially as and for the purpose described.

In testimony whereof, I have hereunto signed my name, at Syracuse, in the county of GnOndaga, and State of N n York, this 13th day of October, 1921.

SPENCER K. BROVN. 

